Dynamo machine



(No Model.) 3 SheetsSheet 1. G. L. DU LANEY.

DYNAMO MACHINE.

No. 399,820. Patented Mar. 12, 1889.

WI TNESSES:

N. PETE. WW DJ}.

(No Model.) v 3 SheetsSheet 2. G. L. DU LANEY. DYNAMO MACHINE.

Patented Mar. 12, 1889.

INVENTOR;

WITNESS ES.

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UNITED STATES PATENT OFFICE.

GEORGE L. Di. LANEY, OF NFHV YORK, S. Y.

DYNAMO MACHINE.

SPECIFICATION forming part of Letters Patent No. 399,320, dated March 12, 1889.

Application filed August 22, 1883. Serial No. 283,479. (No model.)

To all whom it may concern.-

Be it known that 1, GEORGE L. DU LANEY,

' of the State, county, and city of New York,

have invented certain new and useful Improvements-in Dynamofllachines; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and letters of reference marked thereon.

Figure 1 is avertical side view or elevation of the machine, partly in section. Fig. 2 is a plan view of Fig. 1, partly in cross-section, with the central or interior magnet removed, exposing the disk on which the armature is mounted. Fig. 3 represents in detail the construction of the segments of armature-ring. Fig. 4 is a sectional side view of a portion of the armature-disk shown in Fig. 2, showingthe connections of windings of armature-seg ments with that of the rotating disk. Fig. 5 is a plan of the sections or blanks composing the cheek-pieces of field magnets. Fig. 6 are detail views of the stay rin or collars for pole-pieces. Fig. 7 shows the detail of commutator-blanks or bars. Fig. 8 is a plan view of the independent interior-magnet or fieldpiece. Fig. 9 is a plan view of the base-plates or binding-rings of the field-magnets.

The nature of my invention relates to the novel construction of pole-pieces for fieldmagnets and the manner of uniting the same; to the novel provision and construction of vulcanite or non-conducting disk for mounting armatures; to the novel construction and application to the disk of sections or segments composing the ring or core of an armature; to the method of connecting the ends of the windings to the commutator-bars, and to the peculiar plan and general construction of the machine.

The wrought-iron base-plate or disk D is made in the form of a ring, and while it serves the purpose of a base-plate for the support of the machine it also serves the purpose of the usual binding-yoke in the ordinary method of constructing dynamo-machines. On this baseplate or ring are mounted the cores of fieldmagnets A A, being secured in place by means of screws passing up through the disk D into the cores, which have been previously drilled and tapped for that purpose. (See Fig. 1.) The cores are cut from eold-rolled iron shaft ing in such lengths and of such diameter as will be suited, proportionately, to the size of the machine to be constructed. These cores are bound together at their top ends by means of screws passing down through the iron bridge-piece K, as shown in the illustration.

It will be noticed that the bridge-piece K is cast with a central hub orboss which extends down to the disk R, thus providing a suitable journal-bearing for the driving shaft G, as well as a readymeans of support for the arms or erosshead Z Z and brushes X X,as shown in Fig. 1.

The cheeks c e of the field-magnets are built up of wrought-iron sections r, Fig. 5, blanked from thin sheets of refined iron to a size suited to the diameter of the armature to be used in the construction, holes u of suitable diameter being provided about ihe central portion of the back of the crescent that shall exactly correspond to and fit over the smooth surface of the cores, (see A) where they are secured between the collars (Z (l, as shown in the drawings, Fig. 1. The collars c 0 being added to the ends of the cores as a means of completing the form of a blankspool for the winding of wire about the poles. The collars or rings d (7 may be threaded on to the poles, if preferred, a notch, i, being provided for the use of a wrench in that case; or the usual headless set screw may be used to accomplish the same end, if preferred. (Not shown in the drawings.) The thin blanks c Fig. 5, or sections of the fieldcheeks e e are held in a compact mass by means of screws or rivets passing through the small holes 7 in the ends of the blanks provided for that purpose.

It will be noticed that this construction a field-magnet requires no other fitting finishing to adapt it in its relation to that of the armature, while at the same time it is an easy and ready means of providing a wroughtiron field core and magnet instead of the expensive forging heretofore in use or the cumbersome cast-iron devices now in general use.

The windings of the field-magnets are accomplished in the usual manner, and are wound to suit the kind of work they are intended to perform.

The armature B is unique in shape and novel in construction. On the lower end of the driving-shaft G is secured a rotating disk, R, of vulcanite or other non-conducting substance, about the periphery of which is provided a series of slots or mortises, V, of V shape, which receive and retain the tenoned ends of the segments '7', which composes the ring or core of the armature B. The armature core or ring is constructed in segment-like sections 0', Fig. 3, of wrought-iron drop-forgings of a size and shape to correspond to the number of windings to be used in the construction of the armature. To each of these segments of a ring is forged a wedge-shaped flange, against which the windings of wire rest when being abutted one against the other when the sections are secured in place about the periphery of the disk R, as shown in Figs. 1 and 2.

The windings of the sections maybe accomplished in detail by screwing a flange or plate to the face of the core of the segment about which the wire is to be wound and removing the same after the winding is completed, thus making it ready for its place on the disk, and so on to the end. This being accomplished, the segments are placed in position in the slots V around the periphery of the disk R, from which they depend when bound securely by means of the metallic band 0, as shown in the illustrations, the band 0 being shrunken on around the periphery of the disk after the segments have been placed in position. This having been accomplished, the bars 9 of the commutator are secured in position to the check or upper surface of the disk R by means of screws j, as shown in the section of the bar in Fig. 1. This being accomplished, the ends of the armature-windings are secured in place under the heads of bindingscrews Z Z, provided for the purpose, as follows: The-first end of the winding is passed through the eyelet h, across the periphery of the disk D, just under the band 0, to and under the binding-screw Z in the radial L-shaped extension of the commutator-box g. The opposite end of the winding is passed through the eyelet '72, near the center of the disk R, and onto the opposite end of the next succeeding bar g, where it is retained under the head of the screw Z, as shown.

The shrinkage of the metallic band ]:2 about the hub of the disk R adds strength to the hub. X X indicate the usual commutatorbrushes, broken away to show the position of the commutator-bars g. Z Z indicate the crosshead or arms carrying the supports for the brushes. f f f indicate terminal bindingscrews. P is the driving-pulley; I, the sustaining-yoke for the driving-shaft G at its upper extremity. 1 2 3 4indicateinsulations in the general construction.

In addition to the above-described construction of a dynamo-machine I provide an independent interior magnet or field-piece, the construction of which is very similar to the one above described, the modifications being such as to adapt it to the interior of the armature of the machine, with the object of covering and fully utilizing what has here tofore been known as dead wire in the construction of the armature when influenced only from exterior field-magnets.

The construction and application are as follows: D is a wrought-iron disk, to which the magnets A are secured by means of screws similar to those above described. The checkpieces 6 are built up of sections or blanks 0 Fig. 5, and are secured to the upper ends of the cores by means of screws passing through the mass, as shown in the figure. This magnet is placed in the central opening of the main ring D, Figs. 1 and 9, and is bolted in place to the sill T, as shown. The disk D is then secured by means of bolts to the sill T, which completes the machine, as fully shown in Fig. 1.

I claim- 1. In a dynamo-machine, the combination, with the base-ring and the bridge-piece K, of the cores secured between said base-ring and bridge-piece and provided with the collars d d and c c, the coils wound upon the ends of the cores between the collars, and the polepieces 6 6, built up of sections, substantially as and for the purpose set forth.

2. In a dynamo-machine, the revoluble vulcanite disk R, for carrying the armature, provided with wedge-shaped vertical slots V in its periphery and with the channels for the wires, substantially as and for the purpose set forth.

3. In a dynamodnachine, the combination, with the revoluble disk R, provided with ver tical wedge-shaped slots V in its periphery, of the armature-ring built up of sections provided with projections fitting into the slots in the said disk and a band for holding said segments in position, substantially as set forth.

4. In a dynamo-machine, the combination, with the revolublc disk R, provided with vertical wedge-shaped slots V in its periphery, of the armature-ring built up of sections pr0 vided with flanges on one side having projections at one end of them fitting into the said slots, the coils wound upon the said sections, and an insulated metallic band shrunk upon the periphery of the disk for holding the said sections in position, substantially as set forth.

5. In a dynamo-machine, the combination, with the revoluble disk R, provided with wire-channels n and h, of the armature-ring depending from the disk, the commutatorbars g, secured to the upper surface of the disk and provided with binding-screws Z and Z, and the armature-coils having their opposite ends passed through the said channels in the disk and secured to the commutatorbars by the binding-screws, substantially as and for the purpose set forth.

(5. In a dynaino-inachine, the combination, with the outer field-magnets, A A, provided with the pole-pieces e 9, built up of thin sections, the end coils, and the collars at each end of the coils, substantially as set forth, of the revoluble armature-ring between the said pole-pieces and the inner electro-1nagnets,A provided with pole pieces inside the said armature-ring and built up of thin sections and secured to the cores, substantially as and for the purpose set forth.

'7. In a dynamo-machine, the combination, with the field-magnets A A, provided with pole-pieces e e and coils, as set forth, of the bridge-piece K, secured to the upper end of 

